diff --git a/src/scs_host/sys/host_serial.py b/src/scs_host/sys/host_serial.py
index 640bd87..0433010 100644
--- a/src/scs_host/sys/host_serial.py
+++ b/src/scs_host/sys/host_serial.py
@@ -70,4 +70,4 @@ def device_identifier(self):
 
     @property
     def __lock_name(self):
-        return "-".join((self.__class__.__name__, str(self._device_identifier).replace("/", "_")))
+        return "-".join((self.__class__.__name__, str(self._device_identifier)))